iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
IEC

IEC 60542:1976

(Main)

Application guide for on-load tap-changers

Application guide for on-load tap-changers

Assists the selection of suitable on-load tap-changers for use in conjunction with the tapped windings of transformers or reactors. This publication should be read in conjunction with IEC 60214 and IEC 60076. Gives field service advice concerning safety of operation, parallel operation, contact erosion and oil contamination, also comprehensive details for accompanying enquiries and orders.

Guide d'application pour changeurs de prises en charge

Aide au choix des changeurs de prises en charge convenables destinés à être utilisés avec les enroulements de réglages des transformateurs ou des inductances. Celle publication doit être utilisée avec la CEI 60214, ainsi qu'avec la CEI 60076. Donne des renseignements sur le fonctionnement sur place concernant la sécurité des opérations, la marche en parallèle, l'usure des contacts et la pollution de l'huile, ainsi que les détails complets pour le lancement des appels d'offres et la passation des commandes.

Application guide for on-load tap-changers

General Information

Status
Replaced
Publication Date
31-Dec-1975
ICS
29.180 - Transformers. Reactors
Technical Committee
TC 14 - Power transformers
Current Stage
DELPUB - Deleted Publication
Completion Date
14-Oct-2004
Ref Project
SIST IEC 60542:1997 - Application guide for on-load tap-changers

Relations

Replaced By
IEC 60214-2:2004 - Tap-changers - Part 2: Application guide
Effective Date
05-Sep-2023
Amended By
IEC 60542:1976/AMD1:1988 - Amendment 1 - Application guide for on-load tap-changers
Effective Date
05-Sep-2023

Buy Standard

IEC 60542:1997IEC 60542:1997
PreviousNext
Standard
IEC 60542:1997
English language
9 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


SLOVENSKI STANDARD
01-oktober-1997
Application guide for on-load tap-changers
Application guide for on-load tap-changers
Guide d'application pour changeurs de prises en charge
Ta slovenski standard je istoveten z: IEC 60542 Ed. 1.0
ICS:
29.120.40 Stikala Switches
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SI
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

IEC
IEC 60076-22-7:2020/COR1:2023(Corrigendum)
Corrigendum 1 - Power transformers - Part 22-7: Power transformer and reactor fittings - Accessories and fittings
  • Standard
    2 pages
    English and French language
    sale 15% off
IEC
IEC 60076-19-1:2023(Main)
Power transformers - Part 19 - 1: Rules for the determination of uncertainties in the measurement of the losses of power transformers

IEC 60076-19-1:2023 defines the procedures that are applied to evaluate the uncertainty affecting the measurements of no-load and load losses during the routine tests on power transformers.
This document centres on measuring systems utilizing digital instruments, although the procedures can be adapted to evaluation of systems with analogue instruments where further uncertainty sources have to be taken into account.
This document specifies how to determine measurement uncertainty and how to apply corrections for known errors in the measurement chain. Information vis-à-vis judgement and traceability are given in IEC 60076-8:1997, 10.1 and 10.2.

  • Standard
    97 pages
    English and French language
    sale 15% off
IEC
IEC 60076-25:2023(Main)
Power transformers - Part 25: Neutral grounding resistors

IEC 60076-25:2023 applies to dry type natural air-cooled resistors, for neutral grounding of transformers and generators, in order to limit the earth fault current in power systems by means of metallic resistive elements.
For the purposes of this document, the resistor can be:
used alone or in combination with other electrotechnical products not covered by this document, such as (but not limited to): a step-down single-phase transformer, an open triangle or zig-zag transformer (where the neutral point is not available) and a Petersen coil reactor (in order to increase active power contribution to the fault or reduce time constant for proper protection operation or both);
designed, manufactured and verified on a one-off basis or fully standardized and manufactured in quantity.
Both terms "neutral grounding resistor" (NGR) and "neutral earthing resistor" (NER) can be used. However, for the purposes of this document and in order to avoid any confusion with "neutral earthing reactor" (NER), the term "neutral grounding resistor" (NGR) is used.
This document specifies:
the characteristics of the NGR;
the service conditions requirements for NGRs;
the tests and test methods for confirming that these conditions have been met;
the requirements relating to marking for NGRs.
Annex A provides guidance on how to consider the effect of resistance variation with temperature.

  • Standard
    46 pages
    English and French language
    sale 15% off
IEC
IEC 60076-22-8:2021(Main)
Power transformers - Part 22-8: Power transformer and reactor fittings - Devices suitable for use in communication networks

IEC 60076-22:2021 applies to a selection of accessories and fittings mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with or without conservator for indoor or outdoor installation.
It outlines the operation requirements specific to each device as well as the data made available to the communication network and the type and routine test to be performed.

  • Standard
    42 pages
    English and French language
    sale 15% off
IEC
IEC 60076-22-6:2021(Main)
Power transformers - Part 22-6: Power transformer and reactor fittings - Electric fans for transformers

IEC 60076-22-6:2021 covers the electric fans used in the cooling circuits of power transformers and reactors. It applies to electric fans mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical and electrical requirements that are common to all the equipment.
The electric fans concerned by this document are of the axially operating type and are for use on liquid to air coolers and for blowing out radiators.
This document also outlines the operation requirements specific to each equipment as well as the preferred dimensions relevant for interchangeability and uniform fan assembly and the type and routine tests to be performed.

  • Standard
    33 pages
    English and French language
    sale 15% off
IEC
IEC 60076-22-5:2021(Main)
Power transformers - Part 22-5: Power transformer and reactor fittings - Electric pumps for transformers

IEC 60076-22-5:2021 covers electric pumps used in the cooling circuits of power transformers and reactors. It applies to electric pumps mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation.
It outlines the operation requirements for the electrical and hydraulic performance, mechanical design, routine testing and type testing. Additionally, performance and dimensions of preferred sizes of pump sets are specified in informative annexes.
The pumps covered in this document are rotodynamic pumps driven by a squirrel cage induction motor that is immersed in the insulating liquid.
Pump sets conforming to this document can be of in-line or end suction design.

  • Standard
    49 pages
    English and French language
    sale 15% off
IEC
IEC 60076-10-1:2016/AMD1:2020(Amendment)
Amendment 1 - Power transformers - Part 10-1: Determination of sound levels - Application guide
  • Standard
    3 pages
    English language
    sale 15% off
IEC
IEC 60076-11:2018/ISH1:2020(Main)
Interpretation sheet 1 - Power transformers - Part 11: Dry-type transformers
  • Standard
    2 pages
    English language
    sale 15% off
IEC
IEC 60076-24:2020(Main)
Power transformers - Part 24: Specification of voltage regulating distribution transformers (VRDT)

IEC 60076-24:2020 applies to medium power transformers from 25 kVA up to 3 150 kVA with highest voltage for equipment up to 36 kV, or in low voltage (LV) networks with highest voltage for equipment of up to 1,1 kV equipped with voltage regulating devices. Voltage regulating distribution transformers are transformers equipped with components to control primary or secondary voltage for on-load voltage regulation purposes. The main objective of the installation of a VRDT is to regulate the LV network voltage level (i.e. 400 V), to avoid violation of the limits defined by relevant standards or regulations. The VRDT must operate properly as a step down and step up transformer. Transformers covered by this document comply with the relevant requirements set out in IEC 60076 (all parts) and, unless otherwise stated in this document, they also comply with European Standards EN 50160 and EN 50588-1.

  • Standard
    22 pages
    English and French language
    sale 15% off
IEC
IEC 60076-22-7:2020(Main)
Power transformers - Part 22-7: Power transformer and reactor fittings - Accessories and fittings

IEC 60076-22-7:2020 applies to a selection of accessories and fittings mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076­6 with or without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical requirements that are common to all the accessories and fittings. This document also outlines the operation requirements specific to each device as well as the preferred dimensions relevant for interchangeability and the type and routine test to be performed.This document covers an exhaustive selection of the accessories and fittings that are currently used on transformers or reactors.
The contents of the corrigendum of June 2023 have been included in this copy.

  • Standard
    127 pages
    English and French language
    sale 15% off